Soft x-ray emitting regions in the solar corona |
| |
| Authors: | M Landini B C Monsignori Fossi |
| |
| Institution: | (1) Arcetri Astrophysical Observatory, Firenze, Italy |
| |
| Abstract: | The soft X-ray emission of the solar corona is investigated by comparison of the signals of several broad band photometers carried on the Solrad 9 satellite, and sensitive to the region 0.5–20 Å. Temperature from 1.5 × 106 to 25 × 106 K have been measured with  emission measure  N
e
2 dV ranging between 1050 cm–3 to 1047 cm–3.By means of the observational data and assuming magnetic confinement and hydrostatic equilibrium, the model of an active region is investigated. For temperatures larger than 107K the emission is due to flare activity and two sets of emission measure are observed which appear to be related to the evolution of flares. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
